‘THEORETICAL’Calibration
Set switch 1, near the input connector ON and switch 3 OFF
1) How to set SPAN and DECIMAL POINT
Press the SPAN button for 3 seconds.
You’ll see ‘In HI’ briefly, then a value, with one digit brighter than the other.
This is 20.000 for a 20mV input signal, or 10.000 for a 10mV input signal, and
so on. If the value is correct, press the ‘OK’ button, otherwise use the ‘DIGIT’
key to select digits, and the ‘UP’ or ‘DOWN’ arrow keys to alter. When correct,
press the ‘OK’ button.
‘rd HI’ appears briefly, then a value, with one digit brighter than the other. This
is what will be displayed for the IN HI input. If the value is correct, press the
‘OK’ button , otherwise use the ‘DIGIT’ key to select digits, and the ‘UP’ or
‘DOWN’ arrow keys to alter . The Decimal point position may be set after the
most significant digit has been selected. When correct, press the ‘OK’ button.
2) How to set ZERO
Press the ZERO button for 3 seconds. You’ll see ‘IN LO’ briefly, then a value,
with one digit brighter than the other. This is 0.000 for 0mV input signal, 3.000
for a 3mV input signal, etc. If already correct, press the ‘OK’ button. Or, use
the ‘DIGIT’ key to select digits, and the ‘UP’ or ‘DOWN’ arrow keys to change.
When correct, press the ‘OK’ button.
You’ll now see ‘LO rd’ briefly,then a value, with one digit brighter than the
other. This is what will be displayed for the IN LO input. If already correct,
simply press the ‘OK’ button. Or, use the ‘DIGIT’ key to select digits, and the
‘UP’ or ‘DOWN’ arrow keys to change. When correct, press the ‘OK’ button.
IMPORTANT!
Set lockout switch 3 to its ‘ON’ position after setup, to save your settings.
Do NOT move switch 1 or 2. If your readings change when you move switch 3, make a brief
connection between terminal 7 and 10 to clear any tare offsets.
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